Finding A Product That is in Demand
Choosing the Right Product
And here are several factors or aspects that must be measured: (a) not enough demand means not enough people are going to buy (b) too much competition means not enough of a profit to go around (c) too much advertising drives up the price of pay per click ads, and competition as well (d) not enough general interest, combined with low demand, means there may not be a good market even if there is competition trying to make the sales.
Four Positive Points for Internet Marketing
Choosing the Right Product